Malicious PDF — malware analysis report

Static analysis result for SHA-256 ccc733bc20fa4360…

MALICIOUS

PDF

34.2 KB Created: 2020-08-30 16:40:11 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: e4871056022be3874c5e3d72af521086 SHA-1: 2f4e09b30aa315a813aa2f1d89917bd0a8b7497a SHA-256: ccc733bc20fa4360be1ea5e1b26aaf0f340314c729b9ec602889df82957b49bf
154 Risk Score

Malware Insights

MITRE ATT&CK
T1566.002 Spearphishing Attachment T1059.001 PowerShell

The PDF contains a critical heuristic firing for a malicious redirector link, pointing to 'https://ttraff.me/wix?keyword=alacakaranl%25C4%25B1k+%25C5%259Fafak+vakti+2+full+izle'. This URL is likely intended to lead the user to malicious content, possibly a phishing page or malware download. The document body, though heavily obfuscated, also contains this URL, reinforcing its role as a lure. The presence of numerous other links, many pointing to benign Shopify PDFs, suggests a link farm tactic to obscure the malicious destination. No scripts were extracted from this sample.

Machine Learning

  • Nyx PDF Classifier malicious score 1.0000

Heuristics 4

  • PDF links to known malicious redirector infrastructure critical PDF_MALICIOUS_REDIRECTOR_LINK
    PDF contains a clickable URI to redirector infrastructure used by a known malicious PDF SEO/adware delivery campaign. These documents typically rely on user interaction and redirect chains rather than a PDF parser vulnerability.
  • Small PDF contains mass external PDF link farm critical PDF_SEO_LINK_FARM
    Small PDF contains many clickable external PDF links, mostly clustered on one host. This matches generated SEO/link-farm PDF carriers used to route users into malicious or unwanted-software delivery chains, rather than a normal document citation pattern.
  • Object number defined twice with different bodies info PDF_DUPLICATE_OBJ_BODY_INCREMENTAL
    The same indirect object (N G) is defined more than once with different body bytes. First-wins and last-wins readers will resolve different content, which is a parser-confusion shape used by targeted PDFs. Body-only differences are common in benign incremental updates, so severity is raised only when the duplicate carries active content.
  • Embedded URL info EMBEDDED_URL
    One or more URLs were extracted from the document. The URL itself is not a detection — see the per-URL labels for which channel (macro, JS, link annotation, document body, ...) reached each URL.
    URL https://ttraff.me/wix?keyword=alacakaranl%25C4%25B1k+%25C5%259Fafak+vakti+2+full+izle
    • https://cdn.shopify.com/s/files/1/0432/0326/4667/files/bpmn_2._0_introduction.pdf
    • https://cdn.shopify.com/s/files/1/0437/2656/9633/files/74829183967.pdf
    • https://cdn.shopify.com/s/files/1/0430/6868/6497/files/81624659576.pdf
    • https://cdn.shopify.com/s/files/1/0433/7818/0259/files/magram_clan_centaur_exalted_guide.pdf
    • https://cdn.shopify.com/s/files/1/0462/7762/3957/files/xefegorajokijidoza.pdf
    • https://cdn.shopify.com/s/files/1/0431/4506/8699/files/13427098256.pdf
    • https://cdn.shopify.com/s/files/1/0437/8099/7269/files/magic_bullet_recipe_book.pdf
    • https://cdn.shopify.com/s/files/1/0431/7180/7396/files/new_jersey_magisterial_district_court_docket_sheets.pdf
    • https://static.usrfiles.com/ugd/b8c837_1a675b55f14544b2a3d56a8adcfbd5f1.pdf
    • https://static.usrfiles.com/ugd/b8c837_3bc19c4b22e94fb09da987312d9a7df4.pdf
    • https://static.usrfiles.com/ugd/b8c837_f035f8eec18649eebf6ec9c77deffc04.pdf
    • https://static.usrfiles.com/ugd/b8c837_70fa9ad2f64145bc96ffa54f0b6d7146.pdf
    • https://static.usrfiles.com/ugd/22bf55_b916c3fc4ed346db96365e36c85f7de2.pdf
    • https://static.usrfiles.com/ugd/b8c837_1ba6f293d1184fe194d318559ee0b62d.pdf
    • https://static.usrfiles.com/ugd/f967ac_33c4f8c35d2b407ba90b4d180dbb2fa7.pdf
    • https://static.usrfiles.com/ugd/2e79a6_ba4e7523dff248aeac548fac9475a5a0.pdf
    • http://www.w3.org/1999/02/22-rdf-syntax-ns#
    • http://purl.org/dc/elements/1.1/
    • http://ns.adobe.com/pdf/1.3/
    • http://ns.adobe.com/xap/1.0/
    • http://ns.adobe.com/xap/1.0/mm/
    • http://ns.adobe.com/xap/1.0/rights/

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000457a.bin
5efd4bffad40a8d953bdb6f29e8ef507dace1fb80c97cf60facc2955de7a095b		 pdf-font-stream PDF embedded font (sfnt) at offset 0x457A 5272 bytes
font_01_sfnt_off00005785.bin
7e5051598c57911a8433ef4f514d7fe81f02f7ceb47ca2db95d69fa8d94baeef		 pdf-font-stream PDF embedded font (sfnt) at offset 0x5785 10844 bytes

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